Heres all the correct answers for unit 2 lesson 6 quick check
Multiple Choice
What is the product of (–6.8)2? (1 point)
46.24
Simplify the expression - (square root) 196
-14
simplify the expression square root of 100 over 49
10/7
find the quotient -7 divided by 14/3
-3/2
which sum will be irrational?
square root 19+7 over 2
which product will be rational
17.12(repeating) *33
A whole number is added to a number with two digits after the decimal point. To make sure the answer is reasonable, how many digits should the sum have after the decimal point?
2
Which of the following cereals is the best buy?
36 oz. for 4.79
Which statement about the product is true?
5.5 times (square root)5
the product is irrational
Which of the following are reasonable answers for the product of two negatives and a positive?
20 and 10
To make sure the answer is reasonable, we should consider the following steps:
1. Find the product of (-6.8)^2:
(-6.8)^2 = 46.24
2. Simplify the expression (- √196):
- √196 = -14
3. Simplify the expression √100 / 49:
√100 / 49 = 10/7
4. Find the quotient of -7 divided by 14/3:
-7 ÷ (14/3) = -3/2
5. Identify the sum that will be irrational:
√19 + 7/2
6. Identify the product that will be rational:
17.12(repeating) * 33
7. Determine the number of digits after the decimal point when a whole number is added to a number with two digits after the decimal point:
The sum should have 2 digits after the decimal point.
8. Determine the best buy among the cereals:
The best buy is 36 oz. for $4.79.
9. Identify the statement about the product that is true:
The product of 5.5 times √5 is irrational.
10. Identify reasonable answers for the product of two negatives and a positive:
The reasonable answers are 20 and 10.